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<FONT color="green">001</FONT>    // Copyright 2008 Waterken Inc. under the terms of the MIT X license<a name="line.1"></a>
<FONT color="green">002</FONT>    // found at http://www.opensource.org/licenses/mit-license.html<a name="line.2"></a>
<FONT color="green">003</FONT>    package org.waterken.syntax;<a name="line.3"></a>
<FONT color="green">004</FONT>    <a name="line.4"></a>
<FONT color="green">005</FONT>    import java.io.Serializable;<a name="line.5"></a>
<FONT color="green">006</FONT>    import java.lang.reflect.Constructor;<a name="line.6"></a>
<FONT color="green">007</FONT>    import java.lang.reflect.Type;<a name="line.7"></a>
<FONT color="green">008</FONT>    <a name="line.8"></a>
<FONT color="green">009</FONT>    import org.joe_e.Powerless;<a name="line.9"></a>
<FONT color="green">010</FONT>    import org.joe_e.Struct;<a name="line.10"></a>
<FONT color="green">011</FONT>    import org.joe_e.reflect.Reflection;<a name="line.11"></a>
<FONT color="green">012</FONT>    import org.ref_send.Record;<a name="line.12"></a>
<FONT color="green">013</FONT>    import org.ref_send.deserializer;<a name="line.13"></a>
<FONT color="green">014</FONT>    import org.ref_send.name;<a name="line.14"></a>
<FONT color="green">015</FONT>    <a name="line.15"></a>
<FONT color="green">016</FONT>    /**<a name="line.16"></a>
<FONT color="green">017</FONT>     * A serialization syntax.<a name="line.17"></a>
<FONT color="green">018</FONT>     */<a name="line.18"></a>
<FONT color="green">019</FONT>    public class<a name="line.19"></a>
<FONT color="green">020</FONT>    Syntax extends Struct implements Powerless, Record, Serializable {<a name="line.20"></a>
<FONT color="green">021</FONT>        static private final long serialVersionUID = 1L;<a name="line.21"></a>
<FONT color="green">022</FONT>    <a name="line.22"></a>
<FONT color="green">023</FONT>        /**<a name="line.23"></a>
<FONT color="green">024</FONT>         * file extension<a name="line.24"></a>
<FONT color="green">025</FONT>         */<a name="line.25"></a>
<FONT color="green">026</FONT>        public final String ext;<a name="line.26"></a>
<FONT color="green">027</FONT>        <a name="line.27"></a>
<FONT color="green">028</FONT>        /**<a name="line.28"></a>
<FONT color="green">029</FONT>         * serializer<a name="line.29"></a>
<FONT color="green">030</FONT>         */<a name="line.30"></a>
<FONT color="green">031</FONT>        public final Serializer serializer;<a name="line.31"></a>
<FONT color="green">032</FONT>        <a name="line.32"></a>
<FONT color="green">033</FONT>        /**<a name="line.33"></a>
<FONT color="green">034</FONT>         * deserializer<a name="line.34"></a>
<FONT color="green">035</FONT>         */<a name="line.35"></a>
<FONT color="green">036</FONT>        public final Deserializer deserializer;<a name="line.36"></a>
<FONT color="green">037</FONT>        <a name="line.37"></a>
<FONT color="green">038</FONT>        /**<a name="line.38"></a>
<FONT color="green">039</FONT>         * Constructs an instance.<a name="line.39"></a>
<FONT color="green">040</FONT>         * @param ext           {@link #ext}<a name="line.40"></a>
<FONT color="green">041</FONT>         * @param serializer    {@link #serializer}<a name="line.41"></a>
<FONT color="green">042</FONT>         * @param deserializer  {@link #deserializer}<a name="line.42"></a>
<FONT color="green">043</FONT>         */<a name="line.43"></a>
<FONT color="green">044</FONT>        public @deserializer<a name="line.44"></a>
<FONT color="green">045</FONT>        Syntax(@name("ext") final String ext,<a name="line.45"></a>
<FONT color="green">046</FONT>               @name("serializer") final Serializer serializer,<a name="line.46"></a>
<FONT color="green">047</FONT>               @name("deserializer") final Deserializer deserializer) {<a name="line.47"></a>
<FONT color="green">048</FONT>            this.ext = ext;<a name="line.48"></a>
<FONT color="green">049</FONT>            this.serializer = serializer;<a name="line.49"></a>
<FONT color="green">050</FONT>            this.deserializer = deserializer;<a name="line.50"></a>
<FONT color="green">051</FONT>        }<a name="line.51"></a>
<FONT color="green">052</FONT>        <a name="line.52"></a>
<FONT color="green">053</FONT>        /**<a name="line.53"></a>
<FONT color="green">054</FONT>         * Finds a corresponding {@link deserializer}.<a name="line.54"></a>
<FONT color="green">055</FONT>         * @param type  type to construct<a name="line.55"></a>
<FONT color="green">056</FONT>         * @return constructor, or &lt;code&gt;null&lt;/code&gt; if none<a name="line.56"></a>
<FONT color="green">057</FONT>         */<a name="line.57"></a>
<FONT color="green">058</FONT>        static public Constructor&lt;?&gt;<a name="line.58"></a>
<FONT color="green">059</FONT>        deserializer(final Class&lt;?&gt; type) {<a name="line.59"></a>
<FONT color="green">060</FONT>            for (Class&lt;?&gt; i = type; null != i; i = i.getSuperclass()) {<a name="line.60"></a>
<FONT color="green">061</FONT>                // Check for an explicit deserializer constructor.<a name="line.61"></a>
<FONT color="green">062</FONT>                for (final Constructor&lt;?&gt; c : Reflection.constructors(i)) {<a name="line.62"></a>
<FONT color="green">063</FONT>                    if (c.isAnnotationPresent(deserializer.class)) { return c; }<a name="line.63"></a>
<FONT color="green">064</FONT>                }<a name="line.64"></a>
<FONT color="green">065</FONT>                // Check for a default constructor of a pass-by-copy type.<a name="line.65"></a>
<FONT color="green">066</FONT>                if (Throwable.class.isAssignableFrom(i) ||<a name="line.66"></a>
<FONT color="green">067</FONT>                    Record.class.isAssignableFrom(i)) {<a name="line.67"></a>
<FONT color="green">068</FONT>                    try { <a name="line.68"></a>
<FONT color="green">069</FONT>                        return Reflection.constructor(i);<a name="line.69"></a>
<FONT color="green">070</FONT>                    } catch (final NoSuchMethodException e) {<a name="line.70"></a>
<FONT color="green">071</FONT>                        if (Record.class.isAssignableFrom(i)) {<a name="line.71"></a>
<FONT color="green">072</FONT>                            throw new MissingDeserializer(Reflection.getName(i));<a name="line.72"></a>
<FONT color="green">073</FONT>                        }<a name="line.73"></a>
<FONT color="green">074</FONT>                    }<a name="line.74"></a>
<FONT color="green">075</FONT>                }<a name="line.75"></a>
<FONT color="green">076</FONT>                // Look for one in the superclass.<a name="line.76"></a>
<FONT color="green">077</FONT>            }<a name="line.77"></a>
<FONT color="green">078</FONT>            return null;<a name="line.78"></a>
<FONT color="green">079</FONT>        }<a name="line.79"></a>
<FONT color="green">080</FONT>        <a name="line.80"></a>
<FONT color="green">081</FONT>        /**<a name="line.81"></a>
<FONT color="green">082</FONT>         * Gets the default value of a specified type.<a name="line.82"></a>
<FONT color="green">083</FONT>         * @param required  required type<a name="line.83"></a>
<FONT color="green">084</FONT>         * @return default value<a name="line.84"></a>
<FONT color="green">085</FONT>         */<a name="line.85"></a>
<FONT color="green">086</FONT>        static public Object<a name="line.86"></a>
<FONT color="green">087</FONT>        defaultValue(final Type required) {<a name="line.87"></a>
<FONT color="green">088</FONT>            return boolean.class == required ? Boolean.FALSE :<a name="line.88"></a>
<FONT color="green">089</FONT>                   char.class    == required ? Character.valueOf('\0') :<a name="line.89"></a>
<FONT color="green">090</FONT>                   byte.class    == required ? Byte.valueOf((byte)0) :<a name="line.90"></a>
<FONT color="green">091</FONT>                   short.class   == required ? Short.valueOf((short)0) :<a name="line.91"></a>
<FONT color="green">092</FONT>                   int.class     == required ? Integer.valueOf(0) :<a name="line.92"></a>
<FONT color="green">093</FONT>                   long.class    == required ? Long.valueOf(0) :<a name="line.93"></a>
<FONT color="green">094</FONT>                   float.class   == required ? Float.valueOf(0.0f) :<a name="line.94"></a>
<FONT color="green">095</FONT>                   double.class  == required ? Double.valueOf(0.0) :<a name="line.95"></a>
<FONT color="green">096</FONT>                   (Object)null;<a name="line.96"></a>
<FONT color="green">097</FONT>        }<a name="line.97"></a>
<FONT color="green">098</FONT>    }<a name="line.98"></a>




























































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